PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3979382-4 1985 I- and H2O2, in addition to their function as primary substrates of peroxidase, may act as alternative "iodine acceptors" and therefore compete with tyrosine for the active iodinating agent, irrespective of whether this compound is an enzyme-associated iodinium cation (E X I delta +) or an equivalent oxidized iodine species (IOH, IC1, I2). Hydrogen Peroxide 7-11 ICR1 differentially methylated region Homo sapiens 332-335